package top.tenebrous.yzl.chat.utils;

import java.util.Date;
import java.util.UUID;

public class UUIDUtils {
  public UUIDUtils() {
  }

  public static String randomUUID() {
    return UUID.randomUUID().toString().replace("-", "").toUpperCase();
  }

  public static void main(String[] args) {
    System.out.println((new Date()).getTime());
    System.out.println(System.currentTimeMillis());
    System.out.println(randomUUID());
  }
}
